Ac electrical supply, 1 ac input connections, Figure 6.1-1: ratings and breakers table – Alpha Technologies Spectra Series User Manual
Page 13
Preliminary Operating Instructions 13 of 62 AIP SERVICE NUMBER 1-800-863-3364
6. AC ELECTRICAL SUPPLY
The charger must be connected to a single-phase power source. All models can operate on an AC power
source input frequency of 50 or 60 + 3% Hertz. Check the label on the front of the charger or contact the
manufacturer for proper AC power source. The AC input voltage is pre-wired at the factory to 120, 208 or 240
(+10% / -12%) VAC and should not be changed.
NOTE: Field alteration of input voltage voids the charger’s UL Listing.
The AC input wiring must be sized and installed in compliance with the National Electric Code and all
applicable state and local codes and requirements. A qualified electrician must install the AC input wiring
system.
CAUTION: TO REDUCE THE RISK OF FIRE, USE ONLY CIRCUITS PROVIDED WITH BRANCH
CIRCUIT PROTECTION IN ACCORDANCE WITH THE NATIONAL ELECTRICAL CODE, ANSI/NFPA 70.
6.1 AC INPUT CONNECTIONS
The standard charger is shipped with conduit knockouts and no AC power supply cord. A qualified
electrician must perform this AC input wiring work.
FIGURE 6.1-1: RATINGS AND BREAKERS TABLE
DC Output
AC Input
Rated
DC
Volts
Rated
DC
Amps
Rms.
DC
Amps
DC
Circuit
Breaker
Amps
Optional
Cable
Size
AWG
Rated
AC Input
Volts
Rated
AC
Amps
AC
Frequency
Hz
AC
Circuit
Breaker
Amps
24
6
10
15
14
120 only
5
60 or 50
10
24
6
10
15
14
208 only
3
60 or 50
10
24
6
10
15
14
240 only
3
60 or 50
10
24
12
20
30
12
120 only
7
60 or 50
10
24
12
20
30
12
208 only
5
60 or 50
10
24
12
20
30
12
240 only
5
60 or 50
10
24
18
35
40
8
120 only
10
60 or 50
15
24
18
35
40
8
208 only
6
60 or 50
10
24
18
35
40
8
240 only
6
60 or 50
10
24
20
35
40
8
120 only
12
60 or 50
15
24
20
35
40
8
208 only
7
60 or 50
10
24
20
35
40
8
240 only
7
60 or 50
10
24
25
40
60
8
120 only
14
60 or 50
20
24
25
40
60
8
208 only
8
60 or 50
10
24
25
40
60
8
240 only
8
60 or 50
10
24
50
80
90
6
120 only
24
60 or 50
30
24
50
80
90
6
208 only
15
60 or 50
20
24
50
80
90
6
240 only
15
60 or 50
20
Notes: All input AC circuit breakers are of the “high inrush” type to prevent nuisance tripping during power-up.
(Continued on next page)